GRADE 8 SCIENCE CHAPTER 4 PRETEST NAME

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Grade 8 Science - Chapter 4 Pre-Test

Name: _______________________________________

Word Bank

Gas Vaporization Melting Point

Melting Condensation Boiling Point

Sublimation Evaporation Boiling

Solid Liquid Flow Rate

Freezing Freezing Point Viscosity



Part A: Fill in the Blanks (15 marks)

  1. ________________________________________ changes a liquid to a solid.

  2. A ______________________________________ has both a definite shape and definite volume.

  3. ________________________________________ refers to how thick or how thin a fluid is.

  4. ________________________________________ is very slow vaporization.

  5. The rate or speed at which a liquid will flow is known as _________________________________________.

  6. The change from a solid to a liquid is known as ___________________________________.

  7. The temperature at which a fluid will boil is known as the ________________________________________.

  8. The change of state which changes a substance from a solid to a gas is _________________________________________.

  9. Rapid vaporization is also known as __________________________________________.

  10. A ________________________________________ has a definite volume but not a definite shape.

  11. The change of states that transforms a liquid to a gas is _____________________________________________.

  12. The temperature at which a substance will melt is known as the _____________________________________________.

  13. A __________________________________________ has neither a definite volume nor shape.

  14. The change from a gas change to a liquid is known as _____________________________________________.

  15. The temperature at which a material will freeze is also known as the ______________________________________________.

Part B: Please complete the particle theory. (8 marks)

1. All matter is made up of ____________________ ________________________.

2. All particles in pure substances are ______________________. Different substances are made up of ___________________________ particles.

3. There are __________________________ between all particles.

4. The particles are always _________________________. As the particles move faster they ____________________ energy.

5. All particles are _____________________________ to other particles.

Part C: Describe how particles act in… (3 marks)

  1. A solid:



  1. A liquid:



  1. A gas:

Part F: Short Answer Questions (15 marks)

  1. What does viscosity mean? What does it mean if a liquid has low viscosity? What if it has a high viscosity?







  1. How could you measure a fluid’s flow rate? Name one fluid that would have a slow flow rate and one fluid that would have a fast flow rate.







  1. What is the relationship between a liquid’s viscosity and flow rate?







  1. What is resistance to flow? How does internal friction affect the flow rate of liquids?







  1. What is a fluid? How can you prove that a finely ground substance, such as salt, is not a fluid?





Part G: Please draw a solid, liquid and a gas below. Underneath each picture list the properties that each states of matter has and how the particles act in each substance. (9 marks)





Part H: True or False (5 marks)


1. A dilute solution will usually have a high viscosity. _________

2. A concentrated solution has more solute than a dilute solution. ___________

3. Usually, when you have a solution with a high concentration, it will also have a high viscosity.______

4. Internal friction refers to how the particles in a substance rub against each other. ________

5. Viscosity means resistance to flow. ____________


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Tags: chapter 4, grade, pretest, science, chapter